How to I change my phone consult of 15 minutes that has been accepted to a 45 minute call?
Message the expert directly and make the request. Many of us are available pre-call to address this kind of issue.
If they're pressed for time, they'll let you know and you can reschedule the call. Otherwise, they'll just keep on the call until you've answered all your questions.
The calls do not get cut off if they go over the accepted timeframe.